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Task image is corrupt or has been tampered with 0x80041321

Task image is corrupt or has been tampered with 0x80041321

In order to fix this, you have to delete the actual task XML file that contains the task settings, then rerun the Task Scheduler to confirm that the error is gone, then import a non-corrupted version of the task back into the Task Scheduler.

Most of the work you have to do is to locate the task file in question.

The task files are located in C:\Windows\System32\Tasks.

If you try to open the task folder, you might get a UAC prompt asking you for permission to access the folder, this is OK, just click continue to access the folder.

For Example: If the corrupt task was "Microsoft-Windows-DiskDiagnosticDataCollector".
This was a Microsoft task, therefore you have to go into the C:\Windows\System32\Tasks\Microsoft\Windows\DiskDiagnostic folder to locate the actual task xml file, which was named "Microsoft-Windows-DiskDiagnosticDataCollector".

Once you have located the task file, close the task scheduler, back up or copy the corrupted task file to any location of your choice first, then delete it from the task folder, then open the task scheduler to confirm that the error has gone.

What you now need to do is then open up the task scheduler, In Left Pane, Click on Task Scheduler Library, then Microsoft, then click on the folder (that had the task error), it should be empty now (you deleted it), then right click, and select import, now import the file from where you saved it (above). Follow prompts, then close. Should be fixed.

If it is still corrupt, you will need to delete it again, then you will need to export the non-corrupted task from another computer or virtual machine, and import it into the task scheduler.
To export the task in question from another computer, follow these steps.

Open the Task Scheduler, then drill down into the task in question, then right-click on the task and select "Export...".

Save the exported XML file to a location of your choosing, then copy it over to the affected computer.

Once you are back on the affected computer, make sure that the task scheduler is closed, then you need to run the task scheduler as an Administrator.

To run the task scheduler as an Administrator, click Start>All Programs>Accessories>System Tools, then locate "Task Scheduler", right-click it and select "Run as Administrator".

Once the task scheduler is open, drill down to the folder where the task is supposed to be located, right-click on a blank portion of the window, and select "Import Task...".

Once you have imported the task, a "Create task" window will open as shown below, just click OK to it.

The task should then be successfully imported, you can then close the task scheduler, and the problem should be fully resolved.